WO2005028376A1 - System and method for removing arsenite and arsenate from water - Google Patents

System and method for removing arsenite and arsenate from water Download PDF

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Publication number
WO2005028376A1
WO2005028376A1 PCT/US2004/030491 US2004030491W WO2005028376A1 WO 2005028376 A1 WO2005028376 A1 WO 2005028376A1 US 2004030491 W US2004030491 W US 2004030491W WO 2005028376 A1 WO2005028376 A1 WO 2005028376A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
approximately
cupric oxide
liquid
arsenate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2004/030491
Other languages
English (en)
French (fr)
Inventor
Katta J. Reddy
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
University of Wyoming
Original Assignee
University of Wyoming
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by University of Wyoming filed Critical University of Wyoming
Priority to BRPI0414173-3A priority Critical patent/BRPI0414173A/pt
Priority to US10/572,445 priority patent/US7897052B2/en
Priority to NZ546332A priority patent/NZ546332A/en
Priority to AU2004274472A priority patent/AU2004274472B2/en
Priority to CA002539543A priority patent/CA2539543A1/en
Priority to JP2006527057A priority patent/JP2007505736A/ja
Priority to EP04784374A priority patent/EP1678086A4/en
Priority to MXPA06003179A priority patent/MXPA06003179A/es
Publication of WO2005028376A1 publication Critical patent/WO2005028376A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C02F1/003—Processes for the treatment of water whereby the filtration technique is of importance using household-type filters for producing potable water, e.g. pitchers, bottles, faucet mounted devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
    • B01J20/0233—Compounds of Cu, Ag, Au
    • B01J20/0237—Compounds of Cu
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
    • C02F2001/427—Treatment of water, waste water, or sewage by ion-exchange using mixed beds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/103—Arsenic compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2307/00—Location of water treatment or water treatment device
    • C02F2307/06—Mounted on or being part of a faucet, shower handle or showerhead
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S210/00—Liquid purification or separation
    • Y10S210/902—Materials removed
    • Y10S210/911—Cumulative poison
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S210/00—Liquid purification or separation
    • Y10S210/902—Materials removed
    • Y10S210/911—Cumulative poison
    • Y10S210/912—Heavy metal

Definitions

  • This invention relates generally to a system and method for removing arsenite and arsenate from water and, more particularly, the invention relates to a system and method for removing arsenite and arsenate from water which reacts arsenic contaminated water with cupric oxide (CuO) particles for a predetermined time.
  • CuO cupric oxide
  • Arsenic is a naturally occurring substance found in a variety of combined forms in the earth. Arsenic contamination of drinking water has been reported from many parts of the world. The United States Environmental Protection Agency (EPA) has stated that arsenic in drinking water causes cancer in humans and that the amount of arsenic in water at the current allowed concentration may equal that caused by smoking cigarettes.
  • Arsenic is a Group 5 A nonmetal with the more common valences of -3, 0, +3 and +5.
  • Arsenite (As +3 ) and arsenate (As +5 ) are the most common forms found in drinking water and wastewater streams. In some arsenic affected areas, substitution of drinking water source by a safe and easily available one can be very expensive.
  • contaminant level MCL
  • arsenic removal may be a more appropriate water supply option in these situations. Therefore, water providers have a need for an economical safe method to remove arsenic from drinking water. Further, residential homes obtaining water from wells have a need for a low cost, safe, and efficient point of entry or point of use arsenic removal system.
  • RO reverse osmosis
  • activated alumina requires the use of caustic chemicals and a very large volume for the high flow rates available with this invention.
  • RO is no longer certified as an arsenic removal technique because of its inability to reduce arsenite (As +3 ) significantly.
  • the present invention is a method for removing arsenite and arsenate from water.
  • the method comprises reacting the water with cupric oxide (CuO) particles for a predetermined time and filtering the reacted water.
  • the present invention also includes a system for removing arsenite and arsenate from water.
  • the system comprises water contaminated with arsenic, cupric oxide (CuO) particles added to the contaminated water, a filter for filtering the CuO/water.
  • FIG. 1 is a schematic view illustrating arsenic removal from contaminated water, in accordance with the present invention
  • FIG. 2 is a schematic view illustrating a filter plant design, constructed in accordance with the present invention
  • FIG. 3 is a schematic view illustrating a filter design, constructed in accordance with the present invention.
  • Arsenite standards were prepared using sodium arsenite salt (NaAsO 2 ). Arsenite standards of 1 ppm, 500 ppb, 250 ppb, 100 ppb, and 10 ppb were prepared using 1000 ppm of arsenite standard. Arsenate standards were prepared using sodium arsenate salt (Na 2 AsO 4 ). Arsenate standards of 1 ppm, 500 ppb, 250 ppb, 100 ppb, and 10 ppb were prepared using 1000 ppm of arsenate standard. Sodium sulfate salt (Na 2 SO ) was used to prepare 1,250 ppm, 1,000 ppm, 250 ppm, and 50 ppm of sulfate standards.
  • NaAsO 2 sodium arsenite salt
  • Arsenate standards were prepared using sodium arsenate salt (Na 2 AsO 4 ). Arsenate standards of 1 ppm, 500 ppb, 250 ppb, 100 ppb, and 10 ppb were
  • arsenic removal data from natural waters without adjusting the pH show that arsenic can be removed from water with the invention of the present application.
  • the method of the present invention is rapid and does not require pH adjustments. Other common ions of water do not affect the removal of arsenic species.
  • the method is simple, effective, and inexpensive. Also, the method produces no harmful by-products.
  • the method of the present invention has potential to address serious health and environmental problems facing both under developed and developed nations by improving the quality of drinking water they depend upon.
  • Arsenate and arsenite can be removed from water in the presence of high sulfate concentrations when 0.5 grams of CuO is used.
  • CuO has efficiently removed spiked arsenate and arsenite from the natural waters.
  • CuO can be used efficiently to remove arsenic species from drinking water and/or contaminated water without adjusting the natural pH.
  • a system for removing arsenite and/or arsenate from tap water comprises an oxidation stage for converting arsenic in the liquid to As and/or As 5 .
  • a cupric oxide contact chamber is disposed downstream from the oxidation stage for receiving cupric oxide and for mixing cupric oxide with the liquid containing As 3 and/or As 5 .
  • a filter is disposed downstream from the contact chamber for removing arsenic complex or complexes from the liquid.
  • the system can further comprise an activated carbon chamber for receiving the filtered liquid and a mix bed ion exchange medium for receiving the carbon filtered liquid.
  • cupric oxide contact section for reacting cupric oxide with arsenic contained in a water stream to produce arsenite and/or arsenate.
  • An activated carbon filter is disposed downstream of the cupric oxide contact section.
  • a mixed bed ion exchange section is dispensed downstream of the activated carbon filter and wherein the cupric oxide contact section, activated carbon filter, and mixed bed ion exchange are housed within a housing that is adapted to connect to a water source.
  • the housing of the treatment and filter system is sufficiently compact to enable the system to be secured to the outlet of a household water faucet.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Hydrology & Water Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Water Treatment By Sorption (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Removal Of Specific Substances (AREA)
  • Treatment Of Water By Ion Exchange (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
PCT/US2004/030491 2003-09-19 2004-09-17 System and method for removing arsenite and arsenate from water Ceased WO2005028376A1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
BRPI0414173-3A BRPI0414173A (pt) 2003-09-19 2004-09-17 remoção de arsenito e arseneto da água
US10/572,445 US7897052B2 (en) 2003-09-19 2004-09-17 Method for removing arsenite and arsenate from water
NZ546332A NZ546332A (en) 2003-09-19 2004-09-17 System and method for removing arsenite and arsenate from water by reacting the water with cupric oxide (CuO) particles
AU2004274472A AU2004274472B2 (en) 2003-09-19 2004-09-17 System and method for removing arsenite and arsenate from water
CA002539543A CA2539543A1 (en) 2003-09-19 2004-09-17 System and method for removing arsenite and arsenate from water
JP2006527057A JP2007505736A (ja) 2003-09-19 2004-09-17 亜ヒ酸塩およびヒ酸塩を水から除去する装置および方法
EP04784374A EP1678086A4 (en) 2003-09-19 2004-09-17 SYSTEM AND METHOD FOR ARSENITE AND ARSENATE REMOVAL FROM WATER
MXPA06003179A MXPA06003179A (es) 2003-09-19 2004-09-17 Sistema y metodo para remover arsenito y arseniato de agua.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US50432903P 2003-09-19 2003-09-19
US60/504,329 2003-09-19

Publications (1)

Publication Number Publication Date
WO2005028376A1 true WO2005028376A1 (en) 2005-03-31

Family

ID=34375476

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/030491 Ceased WO2005028376A1 (en) 2003-09-19 2004-09-17 System and method for removing arsenite and arsenate from water

Country Status (10)

Country Link
US (1) US7897052B2 (https=)
EP (1) EP1678086A4 (https=)
JP (1) JP2007505736A (https=)
CN (1) CN1882507A (https=)
AU (1) AU2004274472B2 (https=)
BR (1) BRPI0414173A (https=)
CA (1) CA2539543A1 (https=)
MX (1) MXPA06003179A (https=)
NZ (1) NZ546332A (https=)
WO (1) WO2005028376A1 (https=)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7235179B2 (en) 2005-05-09 2007-06-26 University Of Wyoming Method for removing arsenic from water
WO2012042530A1 (en) * 2010-09-27 2012-04-05 Tata Consultancy Services Limited Apparatus for water purification
CN105521768A (zh) * 2016-01-13 2016-04-27 福建汉祥纺织科技有限公司 一种具有除砷功能的饮用水净化剂及其制备方法
US9885095B2 (en) 2014-01-31 2018-02-06 Goldcorp Inc. Process for separation of at least one metal sulfide from a mixed sulfide ore or concentrate
CN113354171A (zh) * 2021-05-13 2021-09-07 西北矿冶研究院 一种从铜冶炼废酸中深度脱砷的工艺方法

Families Citing this family (6)

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Publication number Priority date Publication date Assignee Title
WO2008152700A1 (ja) 2007-06-13 2008-12-18 Toyofumi Miyazaki 超微細粒焼砂生物濾過装置
US20140291246A1 (en) 2013-03-16 2014-10-02 Chemica Technologies, Inc. Selective Adsorbent Fabric for Water Purification
US20180362361A1 (en) * 2017-06-20 2018-12-20 Virgil L. Archer Drinking Water Filter
WO2019217683A1 (en) * 2018-05-10 2019-11-14 Lixivia, Inc. Compositions and methods for treatment of mine tailings
CN110563058A (zh) * 2019-09-19 2019-12-13 昆明理工大学 一种改性赤泥协同CuO粉处理有色冶炼污酸中砷的方法
CN120189917B (zh) * 2025-05-26 2025-09-30 烟台大学 一种碳基块状As(III)氧化-吸附材料的制备方法

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US4992620A (en) 1989-11-21 1991-02-12 Phillips Petroleum Company Removal of trialkyl arsines from fluids
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US5149437A (en) * 1991-03-29 1992-09-22 Wilkinson Theodore L Water filter
US5348662A (en) * 1992-05-14 1994-09-20 Elf Atochem North America, Inc. Process for removing heavy metals from aqueous solutions
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US6197193B1 (en) * 1999-10-21 2001-03-06 Virgil L. Archer Drinking water filter
US20010051103A1 (en) * 2000-05-30 2001-12-13 Seo Kyu Bum Preparation of highly pure copper oxide from waste etchant

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JPS58204826A (ja) 1982-05-21 1983-11-29 Sumitomo Metal Mining Co Ltd 亜砒酸イオンの酸化方法
US4913808A (en) * 1988-10-03 1990-04-03 Maqsood Haque Subcompact interchangeable cartridge drinking water purification system
US4992620A (en) 1989-11-21 1991-02-12 Phillips Petroleum Company Removal of trialkyl arsines from fluids
US5149437A (en) * 1991-03-29 1992-09-22 Wilkinson Theodore L Water filter
US5137640A (en) 1991-05-06 1992-08-11 Allied-Signal Inc. Process for the separation of arsenic acid from a sulfuric acid-containing solution
US5348662A (en) * 1992-05-14 1994-09-20 Elf Atochem North America, Inc. Process for removing heavy metals from aqueous solutions
WO1996017682A1 (en) 1994-12-07 1996-06-13 M And K Patent Company, Inc. Acid contacted enhanced adsorbent particle and method of making and using therefor
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US6197193B1 (en) * 1999-10-21 2001-03-06 Virgil L. Archer Drinking water filter
US20010051103A1 (en) * 2000-05-30 2001-12-13 Seo Kyu Bum Preparation of highly pure copper oxide from waste etchant

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7235179B2 (en) 2005-05-09 2007-06-26 University Of Wyoming Method for removing arsenic from water
WO2012042530A1 (en) * 2010-09-27 2012-04-05 Tata Consultancy Services Limited Apparatus for water purification
US9885095B2 (en) 2014-01-31 2018-02-06 Goldcorp Inc. Process for separation of at least one metal sulfide from a mixed sulfide ore or concentrate
US10370739B2 (en) 2014-01-31 2019-08-06 Goldcorp, Inc. Stabilization process for an arsenic solution
US11124857B2 (en) 2014-01-31 2021-09-21 Goldcorp Inc. Process for separation of antimony and arsenic from a leach solution
CN105521768A (zh) * 2016-01-13 2016-04-27 福建汉祥纺织科技有限公司 一种具有除砷功能的饮用水净化剂及其制备方法
CN113354171A (zh) * 2021-05-13 2021-09-07 西北矿冶研究院 一种从铜冶炼废酸中深度脱砷的工艺方法

Also Published As

Publication number Publication date
EP1678086A1 (en) 2006-07-12
JP2007505736A (ja) 2007-03-15
AU2004274472B2 (en) 2010-07-08
MXPA06003179A (es) 2006-06-23
AU2004274472A1 (en) 2005-03-31
CA2539543A1 (en) 2005-03-31
NZ546332A (en) 2009-09-25
CN1882507A (zh) 2006-12-20
US20070262023A1 (en) 2007-11-15
BRPI0414173A (pt) 2006-10-31
US7897052B2 (en) 2011-03-01
EP1678086A4 (en) 2008-01-23

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